[Mk2] [NA] battery starter wire?

[vrooom]

Hiya, Im new owner of 1991 import mr2 rev1 that i got for £500, it is awesome car. I'm working my way though the car.

My car broke down, guages start to play up, i pulled in. cant restart, I looked at battery in frunk,
the battery wire seem broken away from battery + terminal in frunk.

Is that a starter wire? big fat white wire, other wire seem goes to bulkhead.

Can i get a replacement length or have i got to put connector to it?